Brick and block mold



March 30 1926.

W..WATK|NS BRICK AND BLOCK MOLD Filed July 1. 1925 Figi.

WxL-Lmm WATmNs 12. .hr I

: anhand,

Patented Mar. `30, 1926.A

f UNITED STATES WILLIAM wa'rxms, Aor OAKLAND, CALIFORNIA.

BRICK `AND BLOCK MOLD.

Application flled July 1, 1925. Serial' No. 40,9042.y

To all whom it may concern.'

Be it known that WILLIAM WATKINs, a citizen of the United States ofAmerica, residing at Oakland, in the county of Alameda and State ofCalifornia, has invented new and useful Improvements in Brick and BlockMolds, of which the following is a specification.

The object of the invention is to provide an efficient and useful moldof simple construction capable of being manufactured cheaply; to providea device in which bricks and blocks, whether of solid or hollow form,

may be easily cast or formed by a single view on the plane indicated bythe line 2-2` of Figure 1.

Figure 3 is a sectional view on the plane indicated by the line 3 3 ofFigure 1.

Figure 4 is a sectional view on the plane indicated by the line 4 4 ofFigure 2.

The mold consists of an open frame l() adapted for mounting on a base orbottom board 11, the frame being made preferably of thin metal strips orcontinuous metal strips of the desired contour in plan with theextremities united to make it endless. Obviously, the frame may be madeof wood, if desired. The strip of which it is formed defines the sidewalls 12 which are directed outwardly, as indicated at 14. at the uppere'dge, delining a ledge which is bounded by a ange 15. The side Walls 12define the height or thickness of the molded block and the flange 15prevents overiow of the material which is poured into the mold, thusinsuring a suflicient quantity to f orm the brick or block the desiredheight.

The frame is divided into brick or block forming compartments 16 bymeans of .a skeleton frame consisting of the longitudinal and transversepartition plates 17 and 18 which may consist of separable plates securedtogether in any suitable form or else formed as a single unit as shown.The

skeleton frame is insertible in the main frame 10 and rests upon thebase board 11 and if the bricks or blocks to be formed are of the sizeof the compartments 16, the mamay be withdrawn, followed by thewithdrawal of the skeleton frame and the product left to fully. dry out.

Bricks or blocks of smaller dimensions or different shapes may be formedby the use of a skeleton frame of the desired form, or by the use of thedesired form of core blocks of which a specimen is illustrated in thedrawing as indicated at 19. The core blocks are of hollow form, if madeof metal as illustrated, and open at the bottoms, or may be solid woodenblocks which are attached by screws to the transverse bars 20, or bybolts 21, if of the form illustrated. The bars 20 are secured to theledges 14 by means of bolts 22 passing through perforations 23 formed inthe ledges. With the core blocks arranged as illustrated, a brick ofhollow form may be cast in the compartment 16 in which the core blocksare located and obviously the compartments may be divided for thecasting of bricks or blocks of reduced dimensions by arranging coreblocks transversely of the compartments, rather than longitudinallythereof as shown. The core blocks being carried by the bars 20 and thelatter being connected with the main frame, the Withdrawal of the latterwill effect the withdrawal of the core blocks.

It is also obvious that a single mold may be employed to cast bothhollow and solid blocks or bricks by using a portion of the core blocksin place and omitting the core blocks from certain other compartments.

The invention having been described, what is claimed as new and usefulis:

1. A mold of the kind described comprising an open frame, a skeletonframe insertible in the open frame and comprising a connected series ofpartition members dividing the space comprehended by the main frame intocompartments, the main frame having a ledge bounding the side walls atthe upper edge. and an upstanding ange extending throughout the lengthof the ledge at the outer edge of the latter.

2. A mold of the kind described comprising an open frame, a skeletonframe insertible in the open frame and comprising a connected series ofpartition members dividing the space comprehended by the main framev'into compartments, bars spanning and detuchably secured to the mainframe, core blocks of hollow form and open only at the bottom, andfasteners extending through the tops of the core blocks and throu h saidbars to removably secure the-core bloc s to the bars.

3. A mold of the kind described comprising an open frame, a skeletonframe insertible in the open frame and comprising a` connected series ofpartition members dlviding the space comprehended by the main frame intocom artments, the main frame having a. ledge oundingthe side walls atthe uplper edge, an upstanding ange extending t roughout the length oftheledge at the outer edge of the latter, transverse bars spanning themain frame and detachably se.

cured to the ledges thereof, the led es being provided with erforationsengage by bolts carried by sai bars, and hollow core blocks lcpen at'their bottoms and bolted to said ars.

In testimony whereof lhe aixes his signature.

WILLIAM WATKIN S.

